build(deps): bump yamllint from 1.33.0 to 1.34.0 in /tools/src/yamlli…

…nt (envoyproxy#2591)

Bumps [yamllint](https://github.com/adrienverge/yamllint) from 1.33.0 to 1.34.0.
- [Changelog](https://github.com/adrienverge/yamllint/blob/master/CHANGELOG.rst)
- [Commits](adrienverge/yamllint@v1.33.0...v1.34.0)

---
updated-dependencies:
- dependency-name: yamllint
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

tools/src/yamllint/requirements.txt

@@ -1 +1 @@
-yamllint==1.33.0
+yamllint==1.34.0